#!/bin/bash

# Slackware build script for cgit
# Copyright 2013-2020 Matteo Bernardini <ponce@slackbuilds.org>, Pisa, Italy
# All rights reserved.
#
# Redistribution and use of this script, with or without modification, is
# permitted provided that the following conditions are met:
#
# 1. Redistributions of this script must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
#
#  THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR IMPLIED
#  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
#  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
#  EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
#  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
#  OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
#  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
#  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
#  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

cd $(dirname $0) ; CWD=$(pwd)

PRGNAM=cgit
VERSION=${VERSION:-1.2.3}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}
PKGTYPE=${PKGTYPE:-tgz}

DOCROOT=${DOCROOT:-/var/www}

if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) ARCH=i586 ;;
    arm*) ARCH=arm ;;
       *) ARCH=$( uname -m ) ;;
  esac
fi

# If the variable PRINT_PACKAGE_NAME is set, then this script will report what
# the name of the created package would be, and then exit. This information
# could be useful to other scripts.
if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
  echo "$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE"
  exit 0
fi

TMP=${TMP:-/tmp/SBo}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

if [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX="64"
else
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
fi

CGIT_VERSION=${CGIT_VERSION:-v$VERSION}
GIT_VERSION=${GIT_VERSION:-2.26.2}

DOCS="cgitrc.5.txt COPYING README $CWD/config/cgitrc.sample \
      $CWD/config/cgit-lighttpd.conf $CWD/config/cgit-httpd.conf \
      $CWD/config/email-libravatar-korg-additions.css \
      $CWD/config/email-gravatar-sbo-additions.css"

set -e

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $PRGNAM-$VERSION
tar xvf $CWD/v$VERSION.tar.gz || tar xvf $CWD/$PRGNAM-$VERSION.tar.?z*
cd $PRGNAM-$VERSION
chown -R root:root .
find -L . \
\( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 \
 -o -perm 511 \) -exec chmod 755 {} \; -o \
 \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
 -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;

# prepare sources
sed -i Makefile \
    -e "s|-g -Wall -Igit|-Wall ${SLKCFLAGS} -Igit|" \
    -e "s|\/lib$|/lib${LIBDIRSUFFIX}|" \
    -e "s|(libdir)|(prefix)/share|" \
    -e "s|/usr/local|/usr|" || exit 1
sed -e "s|@DOCROOT@|$DOCROOT|g" $CWD/config/cgit.conf > cgit.conf
echo "CGIT_VERSION = $CGIT_VERSION" >> cgit.conf

# extract the git tarball
rm -fR git
tar xvf $CWD/git-$GIT_VERSION.tar.?z*
mv git-* git

make
make install DESTDIR=$PKG

find $PKG -print0 | xargs -0 file | grep -e "executable" -e "shared object" | grep ELF \
  | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true

# install additionals lua scripts
install -m 0644 -D $CWD/config/email-libravatar-korg.lua \
  $PKG/usr/share/cgit/filters/email-libravatar-korg.lua
install -m 0644 -D $CWD/config/email-gravatar-sbo.lua \
  $PKG/usr/share/cgit/filters/email-gravatar-sbo.lua

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
install -m0644 -oroot $DOCS $PKG/usr/doc/$PRGNAM-$VERSION
sed -i "s|@DOCROOT@|$DOCROOT|g" $PKG/usr/doc/$PRGNAM-$VERSION/*
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild

# prepare the cache dir: default permissions are for the apache user and group
mkdir -p $PKG/var/cache/cgit
chown 80.80 $PKG/var/cache/cgit
chmod 775 $PKG/var/cache/cgit

mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc

cd $PKG
/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE
